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Purple Corn Kolsch

Method: All Grain
Style: Kölsch
Boil Time: 75 min
Batch Size: 5.5 gallons (fermentor volume)
Pre Boil Size: 6.5 gallons
Post Boil Size: 5.5 gallons
Pre Boil Gravity: 1.038 (recipe based estimate)
Post Boil Gravity: 1.045 (recipe based estimate)
Efficiency: 80% (brew house)
Calories: 148 calories (Per 12oz)
Carbs: 15.2 g (Per 12oz)

Created: Thursday April 21st 2022

Original Gravity:

1.045

Final Gravity:

1.011

ABV (standard):

4.4%

IBU (tinseth):

22.0

SRM (morey):

3.6

Mash pH

n/a

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
5.56 lb	Belgian - Pilsner5.56 lb Pilsner	37	1.6	50.5%
1.74 lb	US - Pale 2-Row1.74 lb Pale 2-Row	37	1.8	15.8%
3.70 lb	BSG - US - BSG - Purple Corn3.7 lb US - BSG - Purple Corn	10	2.1	33.6%
11 lbs / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
1.50 oz	Hallertau Mittelfruh1.5 oz Hallertau Mittelfruh Hops	Pellet	3.75	Boil	60 min	21.69	75%
0.50 oz	Hallertau Mittelfruh0.5 oz Hallertau Mittelfruh Hops	Pellet	3.75	Boil	1 min	0.31	25%
2 oz / $ 0.00

Show Summary View

Amount	Variety	Cost	IBU	Bill %
2 oz	Hallertau Mittelfruh (Pellet)		22	100%
2 oz / $ 0.00

Mash Guidelines

Amount	Type	Start Temp	Target Temp	Time
3 gal	Strike	140 °F	172 °F	10 min
	Decoction	172 °F	203 °F	10 min
2 gal	Temperature	203 °F	140 °F	60 min
	Temperature	140 °F	172 °F	10 min
2.6 gal	Sparge	172 °F	172 °F	5 min
Starting Mash Thickness: 3.24 qt/lb Starting Grain Temp: 65 °F

Other Ingredients

Amount	Name	Cost	Type	Use	Time
8 g	Thermostable Amylase		Other	Mash	95 min.

Yeast

White Labs - German Ale/ Kölsch Yeast WLP029

Amount:	1 Each	Cost:
Attenuation (avg):	75%	Flocculation:	Medium
Optimum Temp:	65 - 69 °F	Starter:	No
Fermentation Temp:	-	Pitch Rate:	0.35 (M cells / ml / ° P) 82 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

CO₂ Level: 2.25 Volumes

Target Water Profile

Balanced Profile

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
0	0	0	0	0	0
Mash Chemistry and Brewing Water Calculator

Notes

Uses a decoction mash to extract fermentables from the corn. No real rhyme or reason to the remaining grain bill--mostly just leftovers--but I'm pleased with the result. For enzymes I have used both Termamyl and Ceremix Flex from Novozymes, and both do the trick.

I do this one in a Grainfather so I have pretty good temperature control. It would be a lot more complicated with hot liquor infusions, but not impossible.

This is really nice stuff. Dry, with lots of berry flavor. A deep red-brown hue. The Hallertau is very present, but not unpleasantly. Might play with a different aroma hop in future versions, maybe Willamette. Great everyday ale.

Last Updated and Sharing

439

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Brews

Public: Yup, Shared
Last Updated: 2022-06-21 20:17 UTC

Recipe costs can be adjusted by changing the batch size. They won't be saved but will give you an idea of costs if your final yield was different.

Cost for

Gallons

Cost by

Final Yield

	Cost $	Cost %
Fermentables	$
Steeping Grains (Extract Only)	$
Hops	$
Yeast	$
Other	$
Cost Per Barrel	$ 0.00
Cost Per Pint	$ 0.00
Total Cost	$ 0.00

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